GB1560735A - Tuning circuits for communication receiving apparatus - Google Patents

Tuning circuits for communication receiving apparatus Download PDF

Info

Publication number
GB1560735A
GB1560735A GB29457/76A GB2945776A GB1560735A GB 1560735 A GB1560735 A GB 1560735A GB 29457/76 A GB29457/76 A GB 29457/76A GB 2945776 A GB2945776 A GB 2945776A GB 1560735 A GB1560735 A GB 1560735A
Authority
GB
United Kingdom
Prior art keywords
places
place
circuit according
tuning
tuning circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB29457/76A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1560735A publication Critical patent/GB1560735A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
GB29457/76A 1975-07-24 1976-07-15 Tuning circuits for communication receiving apparatus Expired GB1560735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2533072A DE2533072C3 (de) 1975-07-24 1975-07-24 Abstimmschaltung für Hochfrequenzempfangsgeräte

Publications (1)

Publication Number Publication Date
GB1560735A true GB1560735A (en) 1980-02-06

Family

ID=5952335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29457/76A Expired GB1560735A (en) 1975-07-24 1976-07-15 Tuning circuits for communication receiving apparatus

Country Status (5)

Country Link
US (1) US4110695A (fr)
JP (1) JPS5215214A (fr)
DE (1) DE2533072C3 (fr)
FR (1) FR2334240A1 (fr)
GB (1) GB1560735A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207529A (en) * 1976-04-08 1980-06-10 Fujitsu Ten Limited Radio receiver
DE2843214C2 (de) * 1978-10-04 1980-10-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digitales Abstimmsystem für ein Rundfunk-Empfangsgerät
USRE32686E (en) * 1979-02-08 1988-05-31 General Instrument Corporation Digital frequency lock tuning system
US4476584A (en) * 1979-02-08 1984-10-09 Jerrold Electronics Corporation Digital frequency lock tuning system
DE2912710C3 (de) * 1979-03-30 1982-02-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Abstimmschaltung für einen Empfänger, deren Abstimmlage von dem Stand eines Zählers bestimmt wird
US4352206A (en) * 1980-04-08 1982-09-28 Rca Corporation Comparison arrangement for a digital tuning system
JPH0738719B2 (ja) * 1984-08-20 1995-04-26 パイオニア株式会社 Ｃａｔｖ端末のチャンネル設定装置
US4603438A (en) * 1984-09-28 1986-07-29 Rca Corporation Tuning system with provisions for skipping nonpreferred tuning positions
JP3401185B2 (ja) * 1998-05-29 2003-04-28 三菱電機株式会社 無線通信装置及び無線通信方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754392A (en) * 1971-05-17 1973-08-28 Motorola Inc Apparatus for driving a light emitting diode of horologic display
FR2140321B1 (fr) * 1971-06-10 1974-03-22 Dassault Electronique
NL7414565A (nl) * 1973-11-16 1975-05-21 Int Standard Electric Corp Radio- of televisieontvanger.
DE2556951B2 (de) * 1974-12-27 1981-07-16 Fujitsu Ten Ltd., Kobe, Hyogo Abstimmeinrichtung für Funkempfänger
US3980951A (en) * 1975-08-13 1976-09-14 Fairchild Camera And Instrument Corporation Electronic tuning control system for television
US4009439A (en) * 1976-02-27 1977-02-22 Rca Corporation Programming unit for a television tuning phase locked loop

Also Published As

Publication number Publication date
DE2533072A1 (de) 1977-01-27
DE2533072C3 (de) 1978-10-26
JPS5215214A (en) 1977-02-04
DE2533072B2 (de) 1978-03-02
US4110695A (en) 1978-08-29
FR2334240A1 (fr) 1977-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee